Gas-engine.



C. T. WADE.

GAS ENGINE. APPLICATION FILED 001223, 190e.

93 1 ,53 1 Patented Aug. 17,l 1909.

with, and in -which a CHARLES T. WADE, OF THE UNITED STATES NAVY.

Gas-ENGINE.

isp. 931,531. l

, -Specicaton of Letters Patent. I

Patented Aug. 17, 1909.

A ppueaaon med october 23, 190e. senin N6. 345,207.

110191Z whom 'it may. concern: it known that I, CHARLES'T. WADE, `acitizen ofthe United States, and a lieuten- 'antg inthe United StatesNavy, have in :vented new and useful Improvements. in 'I-GasfEngmes, ofwlnch the following is aA speciication;

invention relates tov-improvements j gas engines and the obiect of myinvention 130 is to provide a simple device'oifl this type iin 'whichthe explosion cylinder and a-larger.

,compression cylinder are Yplaced end to end,

acommon piston rod connects the two pis' n =ton's,"a second piston rodor the first prolonged connects thepiston in the explosion cylinder witha crosshead,.the use 'of all valves between the tiylin'ders is dispensedtheburned gases in the ,explosion'chamber are driven out and `replacedwith fresh carbureted air at theend of'lthe stroke.

.With this object in of parts as hereinafter. described and afimed.'

fa verticalseetion of my improved gas engine... Fig. 2 is a verticalsection o a cylinder intothefexplosion cylinder.

a; i jep;1.eSenta compression cylinder, lar erttlian", and pla'ced orfvthe end of, the cxp os.on*'cylinder B '11; Va `common 1 t onrodQ-E-fconnects the two pistons() and and a.4 second piston rodeiconnects thepiston C with the crojsshead K, working on the crossheadguide H, the crosshead being connected 'to the crank-pin S of thecrank-shaft 0,1 byv vmeans of the connectin rod P.

The explosion cyliner is' provided-,with exhaust ports T extending atinteryals all 'the way .around 'the cylinder, these ports leading to theopenair or to a muier of shine-suitable design. v

The inlet to the compression cylinder is .throu h a carbureter-at R ofsome ap- `prove design, then throughpipes andnonlreturn valves at M andm to the two ends of the com ression cylinder.

Cylin er and piston rod bearing surfaces are kept tight by means ofpiston rings Z and z, and by packing rings. Y and y andIy, made of anysuitable material; and rubbm surfaces, of the ci-osshead, connecting roviewfmy invention- :1n the @instruction and'c'ombmanthe accompanyingdrawings, Figure 1 and crank shaft are made of white metal, or

other suitable material l 'Connection 1s lmade from the upper end of thecompression cylinder a to a chamber n between the packing rings y andy', by means of a pipe l l.

A number of' slots Xand are cut in the -ci'cumferences ofthe pistn rodsE and o in such a place that, near the end of the\` .stroke, afterexhaust has taken place, the

slots Xl-will extend in both the chamberssA\\ `anl.Bz oonnectinv them;and near`the .end

-guecting b and a. (through- Z and Thus he use of valves between the'compression -and the explosion cylinder, is entirely.

obviated. A A The packing rings y are laced apart so that the carburetegas under compression may! not escape to the open air when the slots arepart way` through this bearing.

The ignition is by any suitable means,-

that shown in the drawing being by electric spark plu The cyllnders maybe air or .water cooled, may be anysize or shape,- and the lubrication'-may be by any suitable method. modied.. means ,for delivering thecompressedfcarbureted air from the compression i The explosive mixtureof gas which has so far4 been called carbureted air, may be produced'bydrawing gasolene, oil or' alcohol vapor, in'combination with air, from acar- Abureter of some approved design; or may be reduced by admitting aquantity of gasoene, oil or alcohol in aliquid state, into the cylinderfilled withair.

Fin 2 shows'a modified form to replace thes otsin the piston rods. Thepiston rod is here shown hollow, and at the places corres' ending to thetwo ends of the slots, are sun holes tothe inside of the rod. At the endof the stroke, the course of. the carbureted air would be from thecompression cylinder A, through the upper holes\to the inside oftherod', which is tight at both ends,

of the returnstrie, the slots will extend 1n both the chambers b and n,thus contlien, through the lower holes into the explo- -sioncylinder B.

lightlv compressing fresh carbureted air in ,ilo

Athe partition between the chambers A and chamber A until the slot-SIXextend through B, and. thus open A to B.; this occurring just after theexhaust ports T have been uncovered. Thecompressed charge in chamber. Athen drives out all the remaining burned charge in chamber B, andcompletely fills B with fresh carbureted air. Then on thereturn stroke,a partial yacunm is produced' in to fill which fresh carbureted airrushes in through the carbureter at R, thel pipe and non-return valve atM; the charge in l5 is compressed, the spark is a plied at V and theoperationcontlnued, in efinitely. bilnilai-ly, in the Iposition shown inthe drawing, the exhaust has taken place in the explosion cylinder b,the slots w in the vpiston rod -e have admitted fresh --carbureted airunder pressure, from compression cylinder a pipe l and chamber n to theexplosion cylinder b, thus filling Z1 with fresh carbureted air.' 0n thereturn stroke a partial vacuum is created in compression cylinder a,causing fresh carbureted air to rush in through carbureter at It, pipeAand non-return valve at m; the charge'of fresh carburetcd air in theexplosion cylinder b being placed under compression. Whenthe spark isapplied at 2; the up stroke is again produced, compressing the charge inthe compression cylinder a, until exhaust and the opening-of thecompression cylinder a to the explosion cylinder 'b again takes place,vthe operation then being continued, indefinitely.

I claim- 1. In a gas engine, the combination of a compression cylinderand an explosion cylinder arranged in line with each other, the head ofone of said cylinders forming a partition between them, a cross head, a'piston in each of said cylinders, slot-ted4 piston rods connecting saidpistons together and connecting one of -said pistons to said cross'head, a crank shaft connected to said cross head .and means, includingsaid. slotted pisdescribe ,-plosion cylinder, a piston in eaTliT-.of

ton rods, whereby the compressed charges of carbureted air maybe'delivered from 'the compression cylinder into each end of the explosioncylinder alternately, substantially i 2. In a gas engine the combinationof an 4explosion cylinder and a compression cylinder arranged Vinlincwith each other, the head of one of' said cylindersforming apartition between them, said compression cylinder being of greaterdiameter 'than said 'explosion'cylinder, a piston'in'each of saidcylinders, a slotted'piston :'rod connect-ing said pistons, a crosshead'. a slotted pist-on rod connecting said cross head with one of saidpistons, a connecting'rodfaicrankshaft connected thereto, andmeans.i-ncludingsaid" slotted piston rods, whereby fth'eichargeof'carbureted air may bclfd'eflih'e'redfi-m'fthecompression cylinderi1i`tt1Iat-zh-v endP-ofatfhefe explosion cylinder alternatelysubstantial-Ly.

3. In a gas engine, thefe n'rbinati'on bfjan explosionv cylinder andA*fi-"lontlpr'es'sion"icylihss der arranged in line '\\'i'tlieacl1"ther,'thex head of one of said cylinders forming a partit-ion between them,said com are sion.cyltin,

der being of greater diinlieti -thnn there,

I aiid. cylinders, a peripherallyf's rrftedfipistald v5 connecting saidpist ons', iilfcrssj hea d, ai ri' herally slottedpistoni'rod*connecting?onef o said pistons with said cross head,af'fcrank'- s said crank shaft, and a conliitinttitibe' lead ing from011e end of sai'd'oripr sion cylin'-` der to one end of said explosioncylinder, whereby `conlljiressed char es maybe. ,deliveredto theopposite end df tlieeitplositrcylinder alternately, las -f' scribed.

lVitnesses F. H. LEMLr,l 1, 1

